A group of students normally distributed in aptitude and given the same instruction will produce a normal distribution of student achievement. It has been contended that if each of five primary variables in learning are optimized for each student, all students should be expected to achieve mastery of the material. These variables are (1) aptitude…

This report presents program evaluation findings on the 1984-85 Chapter 1 project in the Dade County (Florida) School District. The project sought to raise the reading, mathematics and language performance levels of low achieving students at schools with high concentrations of children from low income families. Achievement was assessed by score…